Home / 28,359.76-42,513.35-12,556.37

Finding the Fourth Proportional to 28,359.76, 42,513.35 and 12,556.37

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Solution

The fourth proportional to 28,359.76, 42,513.35 and 12,556.37 is: 18,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.76 : 42,513.35 = 12,556.37 : x
  2. Step 2: Convert to fraction form
    28,359.76/42,513.35 = 12,556.37/x
  3. Step 3: Cross multiply
    28,359.76x = 42,513.35 × 12,556.37
  4. Step 4: Simplify right side
    28,359.76x = 533,813,352.54
  5. Step 5: Solve for x
    x = 533,813,352.54/28,359.76
  6. Step 6: Final answer
    x = 18,822.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.